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Discussion Starter #1
I have my 90 gallon tank running for about 2 weeks now. I let it cycle instantly by rinsing my dirty filter on my old tank. The plants been there about 4 days. I left out of town last weekend and i have to turn my lights and co2 off coz i dont want any problems happening when Im out. When I can back i saw alot of surface scum buildup. This tank has a build-in overflow and dont know why is still have a surface scum on top. I dont have my discus fish there yet coz i still want to make sure that this tank is running smoothly. This tank has a big driftwood that still wants to float but its tied down at the bottom. I will take pictures of it soon. Pls help.:(
 

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If you are using dechlor or other chemicals, it can make the surface appear very bubbly. Just let it run its course and do not add more chemicals
 

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thats funny. i never noticed that prime or amquel would do this. if you are adding tap water then you must dechlor. you have a surface skimmer? if not, that will help. when i first planted my tank i noticed alot of what looked like an oily film on my water surface. but very soon it disappeared.
 

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Discussion Starter #7
Im tired of looking at it and cleaned it up. Now it looks crisp clean. Its been 5 days now and it look like its not comming back coz my co2 is up and running.
 

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Glad everything is working out then.

Yeah, sometimes in the beginning of a new tank, I have noticed adding those chemicals sometimes leaves a bubbly surface...

Also Gouramis will do that too! lol
 
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